Pile repair unit



- Jan. 16, 1940. J. L. BRUMLEY I PILE REPAIR UNIT Filed Jan. 30, 1939 77| H H m w, Il/ Q ATTORNEYS Patented Jan. 16, 1940 UNITED .STATES PATENTOFFICE I 1 Claim.

' This invention relates to a method and apparatus for repairing piling.

An object of the invention is to provide an economical method ofrepairing or piling under 5 docks and buildings where a pile driver orother equipment cannot be operated.

A further object is to provide a fabricated pile formed of small blocksmolded to shape and respective bolts for the blocks formed ofpredetermined lengths, to provide small units which may be easilyassembled, under docks and buildings to repair the upper rotted parts ofoldpiling and replace defective piling with new piling without the useof a pile driver.

A further object is to provide a fabricated pile which will be formed ofa few strong simple and durable parts, which will be inexpensive tomanufacture, and which will not easily get outof order.

With the above and other objects in View the invention consists ofcertain novel details of construction and combinations of partshereinafter fully described and claimed, it being understood thatvarious modifications may be resorted to within the scope of theappended claim without departing from the spirit or sacriiicing any ofthe advantages of the invention.

In the accompanying drawing forming part of this specication,

Figure 1 is a side elevation of a pair of piles supporting a dock, oneof the piles being repaired 30 in accordance with the invention. n

Figure 2 is a longitudinal sectional view, drawn toenlarged scale, takenon the line 2-2 of Figure 1, with parts in elevation.

Figure 3 is a cross sectional view, drawn to enlarged scale, taken onthe line 3--3 of Figure 2. Figure 4 is a detail sectional view showingthe threaded bolts, nuts thereon, and assembled ends of two contiguousblocks of the pile.

Figure 5 is a modified form of the pile in which the bolts extendthroughout the length of the pile. Referring now to the drawing in whichlike characters of reference designate similar parts in the variousviews, I designates a bolt having spaced portions II thereof screwthreaded. The 45 bolt extends through the axial bore I2 of a respectiveconcrete block I3.` The blocks are held in proper position upon thebolts through the medium of nuts I4 which engage the threaded portionsII of the bolt and which are located in 50 recesses I5 formed in one endof each block. A drift bolt I6 projects below thelowermost block asshown and is driven into the lower portion of (Cl. (i1-53) together asshown at I9 or a single nut may be employed as desired.

In the modified form of the invention shown inFigure 5 the lower portionof a replacement pile is shown and in this instance the bore 20 extendsthrough the bottom of the pile, the pile being pointed at the bottom asusual and being equipped with a cone nut tip 2|. In this modiiied formof the invention a pipe may be rst inserted through the bores or" theblocks to permit water being jetted through the bottom of the pile tosink the pile whereupon the pipe may be replaced with the bolts 22 whichas previously described are provided with threadedv portions having nuts23 received in recesses 24 in the ends of the blocks 25. A metal washer26 and a rubber washer 2'I are located beneath the nuts on each bolt tocompensate for expansion.

In assembling the blocks and bolts underneath a dock 28 or building, thedrift bolt I6 may be driven into the sound lower portion of a pile afterthe rotted upper portion is sawed off. The nuts may be then applied tothe drift bolt and then a cement block I3 may be superposed on thedriven bolt and its bolt I0 screwed down into the uppermost nut to tiethe block to the pile. Then the next block with its bolt is superposedon the initially laid block and the bolt thereof screwed into theuppermost nut of the bolt of the `initially laid blcckto tie the blockstogether. This operation is continued until the pile is built up. To tiethe pile to the Wall 28 the bolt of the uppermost block is secured tothe wharf and threaded into the uppermost nut of the block nextunderneath. The uppermost block may be cut to size to iill the spaceexisting between the wharf and the uppermost block of the uniform sizeblocks, and may be made in half sections to facilitate application, asshown in Figure 1.

A layer of cement 29 is preferably interposed between each contiguoustwo blocks as the pile is built up.

From the above description it is thought that the construction andoperation of the invention will be fully understood without furtherexplanation.

What is claimed is:

A concrete unit for repairing piling, comprising a concrete block havingan axial bore, a bolt in the bore having both ends threaded,` therebeing a recess in the bottom face of the block communicating with saidbore, a pair of nuts assembled as a unit and forming a tie member, saidmember being received in said recess, one of the nuts being threadedonto said bolt and the other nut being adapted to receive the threadedend of the bolt of a companion unit.

JOHN L. BRUMLEY.

